public class Test2 {
    public static void main(String[] args) {
        Object object=new Object();
        Thread t1=new Thread(()->{
            System.out.println("wait之前");
            synchronized (object){
                try {
                    object.wait();
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
            }
            System.out.println("wait之后");
        });

        Thread t2=new Thread(()->{
            try {
                Thread.sleep(3000);
            } catch (InterruptedException e) {
                throw new RuntimeException(e);
            }
            synchronized (object){
                System.out.println("进行通知");
                object.notify();
            }
        });
        t1.start();
        t2.start();
    }
}
